| Patent Number |
Title Of Patent |
Date Issued |
| 7412945 |
Waste heat boiler |
August 19, 2008 |
| A waste heat boiler includes an axial bypass pipe and multiple heat transfer pipes disposed within a cylindrical jacket. A hot exhaust gas stream transported between inlet and outlet ends of the heat transfer pipes is cooled by a coolant. A control system controls gas passage velocit |
| 7411150 |
Method of producing a composite component |
August 12, 2008 |
| A composite component (1), such as a turbine airfoil, includes a conductive portion (2), and a non-conductive portion (5), such as a thermal barrier coating or a wear protection coating, or both. In machining the component, a laser machining step is applied for machining the non-cond |
| 7406827 |
Apparatus for injecting a fuel-air mixture into a combustion chamber |
August 5, 2008 |
| In a fuel lance by means of which fuels can be injected, via at least two separate passages, into a combustion chamber alternately or simultaneously at an injection location arranged substantially at the lance tip, reliable operation is achieved, without the risk of flashbacks and al |
| 7402024 |
Steam turbine |
July 22, 2008 |
| A steam turbine (20), in particular for high pressure and/or intermediate pressure applications, has a rotor (11), which can rotate about an axis (23), an inner casing (14), which concentrically surrounds the rotor (11) at a distance, so as to form an annular passage (12) extending in th |
| 7400418 |
Method and an apparatus for determining the clearance between a turbine casing and the tip of a |
July 15, 2008 |
| It is disclosed a method and an apparatus of determining the distance (D) between a collimator lens (13) and an object. Low-coherence light is emitted from a light source (1) and directed the low-coherence light through a collimator lens (13) to the object. The reflected light from t |
| 7390160 |
Axial flow steam turbine assembly |
June 24, 2008 |
| A turbine, e.g., a high pressure (HP) turbine, has a conventional drum-type structure with reaction turbine stages. A preceding or following turbine, e.g. an intermediate pressure (IP) turbine, on a common axis and on the same steam path, has rotor drum which carries an annular row o |
| 7387662 |
Method and device for separating gaseous pollutants from hot process gases by absorption and a m |
June 17, 2008 |
| In a method of separating gaseous pollutants from hot process gases, the process gases are passed through a contact reactor (22), in which an absorbent material in a moistened state is introduced to convert the gaseous pollutants into separable dust. The dust is separated in a dust s |
| 7387486 |
Axial flow steam turbine assembly |
June 17, 2008 |
| One turbine, e.g. a high pressure (HP) turbine, has a conventional diaphragm and disc structure with impulse turbine stages. A preceding or following turbine, e.g. an intermediate (IP) turbine, on a common axis and on the same steam path, has a rotor drum which carries an annular row |
| 7380402 |
Method for operating a gas turbine and gas turbine system for carrying out the method |
June 3, 2008 |
| A method for operating a gas turbine uses a first fuel at full load. An improved emission behavior is achieved by operating the gas turbine (11) at partial load with a second fuel, which has a richer mix of higher-value hydrocarbons (C2+) with 2 and more carbon atoms per molecule lik |
| 7368845 |
Electrical machine with a rotor and stator |
May 6, 2008 |
| An electric machine with a rotor and a stator, especially an electric motor or a generator, preferably for a power plant, wherein the stator has a winding with several winding bars which, in the area of an axial core face, are each connected via a phase connector bar to a terminal of |
| 7367778 |
Rotor end piece |
May 6, 2008 |
| A rotor end piece (1) for a rotor (6) of a thermal turbomachine, having at least one circumferential slot (3) in which moving blades and intermediate pieces are provided, includes a residual gap (15) formed between an end blade (2) and an end part (11), in which residual gap (15) two |
| 7363764 |
Gas turbine power plant and method of operating the same |
April 29, 2008 |
| A method of operating a gas turbine power plant and gas turbine power plant are disclosed wherein hydrogen for the combusting process is produced by feeding natural gas mixed with steam through a membrane/partial oxidation reactor and converting the natural gas at least to H.sub.2 an |
| 7363756 |
Method for combustion of a fuel |
April 29, 2008 |
| In a method for the combustion of a fuel, a fuel or a premixed combustible mixture is introduced into a combustion space as a combustible fluid open jet. The velocity of the open jet is selected in such a way that it is impossible for a stable flame front to form, i.e. is in any event gr |
| 7356371 |
Adaptive sensor model |
April 8, 2008 |
| The invention provides a method of predicting output values of a physical system from a set of measured inputs of the system using an adaptive model. At each time when a prediction is made, the model is re-initialized to an initial, off-line model and is then refined to incorporate o |
| 7353656 |
Method and apparatus for achieving power augmentation in gas turbines using wet compression |
April 8, 2008 |
| A gas turbine unit and method of operation thereof are disclosed. A very quick and easily controllable augmentation or reduction of shaft power produced by the gas turbine unit, in particular of large gas turbine units exhibiting a pressure ratio larger than 15 bar, is achieved by pr |
| 7353655 |
Method and apparatus for achieving power augmentation in gas turbine using wet compression |
April 8, 2008 |
| A gas turbine unit as well as a method for operating a gas turbine with high-pressure turbine and a low-pressure turbine unit are disclosed. A very quick and at the same time easily controllable augmentation or reduction of the shaft power of the gas turbine unit can be achieved by p |
| 7353654 |
Method and apparatus for achieving power augmentation in gas turbines using wet compression |
April 8, 2008 |
| A gas turbine unit and method of operation thereof are disclosed. A very quick and easily controllable augmentation or reduction of shaft power produced by the gas turbine unit, in particular of large gas turbine units exhibiting a pressure ratio larger than 15 bar, is achieved by pr |
| 7351039 |
Compressor rotor blade |
April 1, 2008 |
| A compressor rotor blade (1) includes a rotor blade (2), a platform (3) that adjoins the rotor blade (2) and blade footing (4) that adjoins the platform (3). The rotor blade (4) is embodied so as to be massive, without an internal cooling system, and exhibits a leading and a trailing |
| 7350360 |
Annular combustor for a gas turbine |
April 1, 2008 |
| The invention relates to an annular combustor (13) for a gas turbine (10), into which combustor (13) burners (14, 15) open on an inlet side, and which combustor (13) extends in the axial direction from the inlet side to an outlet side (33) and is lined on the insides with cooled liner |
| 7347425 |
Rope seal for gas turbine engines |
March 25, 2008 |
| A sealing arrangement in a gas turbine engine comprises a rope seal held against a sealing surface by a resilient seal carrier in which the rope seal lies. |
| 7346974 |
Method for producing a conductor bar of transposed stranded conductors |
March 25, 2008 |
| A method for producing a conductor bar including transposed stranded conductors for a large, rotating electric machine. The method includes a first step of cabling a plurality of electrically insulated individual wires to form a plurality of identical stranded conductors having an es |
| 7342341 |
Rotor for electrical rotating machines |
March 11, 2008 |
| A rotor for electrical rotating machines includes a rotor core with axial grooves for receiving axial conductors. A first element on the axial grooves and a corresponding second element on the axial conductors interact with one another to fix the axial conductors in the axial grooves |
| 7340902 |
Method for operating an air-breathing engine |
March 11, 2008 |
| When operating an air-breathing engine, a liquid is injected in atomized form into an air intake duct of the engine. A measurement apparatus for determining the injected drop size or the drop concentration is arranged in or on the intake duct downstream of the location of the injection. |
| 7340814 |
Method of installing spiral threaded inserts and installation tool |
March 11, 2008 |
| In a method of installing spiral threaded inserts (38), in which method a first threaded insert (38) is inserted into an installation tool (20) and is screwed into a tapped hole by the installation tool (20), safe use is achieved even at locations where access is difficult by virtue of t |
| 7338258 |
Axially separate rotor end piece |
March 4, 2008 |
| A rotor end piece (1) for a rotor of a thermal turbomachine, having at least one circumferential slot (3) in which press blades, intermediate pieces and two end blades (4), between which a residual gap is formed, are fitted, the rotor end piece (1) having two end piece halves (9, 9) |
| 7331182 |
Combustion chamber for a gas turbine |
February 19, 2008 |
| At least one Helmholtz damper is arranged at a combustion chamber for a gas turbine in order to damp thermoacoustic oscillations; the damping volume of this Helmholtz damper is in communication with the combustion chamber via a connecting passage. Optimum damping is achieved in a simple |
| 7329832 |
Automated adaptive machining of obstructed passages |
February 12, 2008 |
| An automated machining process for machining of an obstructed passage (5) of an article (1) includes the steps of deriving the position and orientation of the passage (5) from automated processing of images of the passage (5) and additional information from a distance measurement device |
| 7329086 |
Rotor shaft, in particular for a gas turbine |
February 12, 2008 |
| A rotor shaft, particularly for a gas turbine, includes a cooling air supply disposed inside the rotor shaft and a plurality of cooling air ducts connected to the cooling air supply and extending essentially radially outward toward an outside of the shaft, wherein each of the cooling |
| 7329084 |
Turbomachine |
February 12, 2008 |
| Suitable means for driving a flow are arranged in annular or ring-segment-shaped cavities that are formed in particular in multi-shell casings of turbomachines. Arranged inside the cavity are ejectors that are supplied via suitable means with a motive-fluid flow which in turn excites |
| 7326033 |
Turbomachine blade |
February 5, 2008 |
| A turbomachine blade is disclosed having a shroud element, wherein plastic deformations and lifting of the shroud element on one side result during operation under centrifugal load. This load may result in high-temperature creep of the blade. A sealing strip which is arranged on the |
| 7321835 |
Method for improving the mode of operation of a matrix converter |
January 22, 2008 |
| A method for operating a matrix converter in which m phases of a generator generating alternating voltage with n (n<m) phases of a load are alternatingly connected via a multiple number of controllable bi-directional switches arranged in an (m.times.n) matrix, wherein switching ov |
| 7320574 |
Turbomachine |
January 22, 2008 |
| A turbomachine has, on its inner casing (5) and on its shaft, recesses into which shrouds of rotor blades and/or of guide vanes (2a) protrude. The recesses are configured with wave-shaped contouring arrangements (10), which extend over their periphery. The contouring (10) extends over |
| 7318317 |
Combustion chamber for a gas turbine |
January 15, 2008 |
| A combustion chamber 10 for a gas turbine that operates in a highly diluted mode of combustion has a substantially toroidal plenum 30. At least one combustion fluid injector is located at the periphery of the plenum. The shape of the plenum and the disposition of the combustion fuel |
| 7317998 |
Method for the calculation and the assessment of the frequency spectrum of a matrix converter |
January 8, 2008 |
| A method for the calculation of an output spectrum of a matrix converter in which m phases of a generator as an input are alternatingly connected via a multiple number of controllable bi-directional switches arranged in an (m.times.n) matrix with n (n<m) phases of a load as an output. |
| 7316564 |
Method and installation for regulating the quantity of circulating solids in a circulating fluid |
January 8, 2008 |
| A method for regulating the quantity of circulating solids in a circulating fluidized bed reactor system, whereby a solid flow/gas flow mixture leaving the fluidized bed reactor is fed tangentially into at least one cyclone separator for separation of the solid from the gas flow. The |
| 7314670 |
Welded component |
January 1, 2008 |
| A welded component includes at least one high temperature segment of a high alloy Cr steel with high creep strength and a low temperature segment of a low alloy steel with high toughness and/or a high yield strength which are connected materially to one another via a weld joint. In o |
| 7312551 |
Coil for a dynamo electric machine |
December 25, 2007 |
| A coil (20) for a dynamo electric machine, particularly for the stator (33) of a hydro-generator, includes a plurality of coil rods (22, 24), running in the axial direction in a sheet metal package, whose rod ends (23, 23'; 25, 25'), which protrude from the sheet metal package, are bent |
| 7311741 |
Device for separating dust and dirt out of flowing media |
December 25, 2007 |
| The invention describes a device for separating dust and dirt out of flowing media. A curved flow path (1) is imposed on the flow (21), and heavy foreign bodies are separated out of the main flow by centrifugal force. The partial stream required to carry away the foreign bodies is af |
| 7309214 |
Rotor end piece |
December 18, 2007 |
| A rotor end piece for a rotor of a thermal turbomachine having a circumferential slot includes two end piece halves having side faces opposite one another in the installed state and top surfaces adjoining one another, the side faces of the end piece halves being connected to one anot |
| 7305831 |
Gas turbine having exhaust recirculation |
December 11, 2007 |
| A gas turbine adapted to operate in a highly diluted mode comprises a compressor 3 adapted to compress oxidant 5; a combustion chamber 3 adapted to accept the compressed oxidant 7 and provide an exit means for flue gas 9; a turbine 4; and a flue gas re-circulation means 12,13 adapted |
| 7300256 |
Damping arrangement for a blade of an axial turbine |
November 27, 2007 |
| A damping arrangement for a blade (20) of an axial turbine, in particular a gas turbine, includes a damping element (17) which is arranged in a recess (16) in the blade aerofoil (10) of the blade (20) and frictionally dampens the vibrations of the blade (20). In such a damping arrangemen |
| 7300252 |
Gas turbine airfoil leading edge cooling construction |
November 27, 2007 |
| A gas turbine airfoil with a pressure sidewall (6) and a suction sidewall (7) extends from a root (2) to a tip (3) and from a leading edge (4) to a trailing edge (5). It comprises several film cooling holes with exit ports (8). The film cooling holes have a sidewall that is diffused in t |
| 7293962 |
Cooled turbine blade or vane |
November 13, 2007 |
| A turbine blade or vane (1) has a shell (2), including a first side wall (8) and a second side wall (9), which are connected together at a leading edge (10) and at a trailing edge (11), which extend longitudinally from a root (7) to a tip (6) and which are connected together between lead |
| 7293415 |
Method of operating a gas turbine group |
November 13, 2007 |
| In a method for operating a gas turbine centre in the vicinity of the group nominal full-load conditions, the cooling of the working fluid before and/or during the compression is set in such a way that the respectively attainable full-load power is above the current power. Rapid powe |
| 7275018 |
Method of condition monitoring |
September 25, 2007 |
| A method for the condition monitoring of a fleet of machines, plants, or processes includes the generation of a single generic network for the fleet using historic data from the members of the fleet and using novelty detection tools for analyzing and reducing the data. Scaling factors |
| 7273347 |
Blade for a gas turbine |
September 25, 2007 |
| A gas turbine blade (1) has a shroud (3) which is cooled by different cooling mechanisms in various regions (A, B, C) according to the different thermal load. In a first region (A), in a fin (8), bores are provided, by which a convective cooling of the fin and a film cooling of the h |
| 7273345 |
Method for operating a turbo engine and turbo engine |
September 25, 2007 |
| Means for driving a flow are arranged in cavities which are formed, in particular, in multishell casings of turbo engines. In one embodiment, within the cavity, ejectors are arranged which are supplied via suitable means with a propellant flow which, in turn, activates the flow, for |
| 7271515 |
Gas-cooled electrical machine with pressure charging |
September 18, 2007 |
| A gas-cooled electric machine includes a generator housing, a rotor shaft, at least one axial fan disposed on the rotor shaft inside the generator housing and having a hub, and a pressure boosting apparatus associated with the axial fan and configured to raise an absolute pressure in a |
| 7269954 |
Method for operating a gas turbine installation, and gas turbine installation |
September 18, 2007 |
| A method for operating a gas turbine installation (1) includes sucking in a gaseous medium (2) by the compressor (3) and compressed in the compressor space, a liquid medium (10) being injected into the gaseous medium (2), so that a two-phase flow comprising a gaseous phase and a liqu |
| 7267525 |
Rotor for a steam turbine |
September 11, 2007 |
| A rotor for a steam turbine for working steam and including at least two rotor parts welded to one another using a circumferential, annular weld zone, which is closed in the circumferential direction. A cooling channel system is formed in the rotor and has at least one inlet flow channel |
